I posted a picture of one snake I encountered in a mountain in Saijo during a trail running and asked its name. Two friends of mine got back to me with saying, "it's a viper..." OMG.
「知らぬが仏」とはよく言ったものですが、自戒の意味も込め再度写真をアップしておきます。
It's well said, "Ignorance is bliss." I post that photo again to remind myself, too.